The Interwar Period and the Descent into Conflict World War I concluded with the signing of the Armistice of 11 November 1918, though the official Treaty of Versailles was not signed until 28 June 1919. August 1–4, 1914: Germany declares war on Russia and France, and invades Belgium, prompting Britain to enter the conflict.
作为一个人工智能语言模型，这个问题超出我目前的学习范围了，您可以尝试问我其他问题，我将尽力为您解答。
The subsequent two decades, known as the interwar period, were defined by economic instability, political extremism, and unresolved territorial disputes. The war quickly became total, involving the complete mobilization of society and industry, resulting in unprecedented levels of destruction and civilian casualties.
The Start of the Second Global Conflict World War II is generally recognized to have begun on September 1, 1939, when Nazi Germany invaded Poland. The conflict escalated dramatically just two days later when Britain and France declared war on Germany, marking a second world war.
作为一个人工智能语言模型，这个问题超出我目前的学习范围了，您可以尝试问我其他问题，我将尽力为您解答。
July 28, 1914: Austria-Hungary declares war on Serbia. The start date of September 1, 1939, thus represents not just a military invasion but the ignition of a global ideological battleground.
More About When did ww1 and ww2 start
Looking at When did ww1 and ww2 start from another angle can help expand the discussion and give readers a second clear paragraph under the same section.
More perspective on When did ww1 and ww2 start can make the topic easier to follow by connecting earlier points with a few simple takeaways.
